21299836

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:226

約数の個数: 48

約数和(自身を含む): 41126400

約数和(自身を除く): 19826564

約数列:

[1, 2, 4, 19, 38, 47, 67, 76, 89, 94, 134, 178, 188, 268, 356, 893, 1273, 1691, 1786, 2546, 3149, 3382, 3572, 4183, 5092, 5963, 6298, 6764, 8366, 11926, 12596, 16732, 23852, 59831, 79477, 113297, 119662, 158954, 226594, 239324, 280261, 317908, 453188, 560522, 1121044, 5324959, 10649918, 21299836]

約数ペア:

[(1, 21299836), (2, 10649918), (4, 5324959), (19, 1121044), (38, 560522), (47, 453188), (67, 317908), (76, 280261), (89, 239324), (94, 226594), (134, 158954), (178, 119662), (188, 113297), (268, 79477), (356, 59831), (893, 23852), (1273, 16732), (1691, 12596), (1786, 11926), (2546, 8366), (3149, 6764), (3382, 6298), (3572, 5963), (4183, 5092)]